Lock-nut.



J. B. OULLEN.

LOCK NUT.

APPLICATION FILED APR.30, 1912 1,036,803, Patented Aug. 27, 1912.

Mill

JOHN B. CULLEN', OF NEW YORK, N. Y.

LOCK-NUT.

Specification of Letters Patent.

Application filed April 30, 1912.

Serial N 0. 694,100.

To all whom it may concern:

Be it known that I, JOHN B. CULLEN, a citizen of the United States, anda resident of New-Y0rk, borough of Brooklyn, county of Kings, State ofNew York, have invented a certain new and useful Improvement inLock-Nuts, of which the following is a full, clear, and exactspecification.

This invention relates more particularly to a class of devices or nutsadapted to be used in conjunction with threaded bolts and rods.

My invention has for its object primarily to provide a form of lock-nutor device designed to be employed upon bolts when used to connectvarious parts of structural work,

and which is adapted when applied upon the bolt or rod to be heldagainst movement or displacement resulting from vibration or strain aswell as being of a form to permit the nut to be readily removedtherefrom, thus overcoming the objections incident to the usual form ofnuts which frequently rust so tightly to the bolt or rod that it ispractically an impossibility to separate them intact.

A further object of the invention is to provide a lock-nut especially tobe used in conjunction with bolts of long lengths and upon threadedrods, and which is of simple and eflicient form.

A practical embodiment of the invention is represented in theaccompanying drawing forming a part of this specification in whichsimilar characters of reference indicate corresponding parts in all theviews, the said invention being more fully described hereinafter andthen pointed out in the appended claims.

In the drawing Figure 1 is a fragmentary sectional view of one form of alock-nut enibodying my invention applied upon a bolt. Fig. 2 is a sideelevation of the sections of the body of the lock-nut. F ig. 3 is an endview of the sleeve of the lock-nut, and Fig. 4 is an end view of thesection of the body of the lock-nut.

The lock-nut, or device 10 has a tubular body 11 composed of twomembers, or sections 12 and 13, each of which is alike in formation andsemi-circular in shape. The inner surface of the sections 12 and 13 arethreaded in a manner so that the body is provided with a continuousthread when the sections are assembled for engagement With the threadedend of a rod, or bolt 14.

Upon one end of each of the sections 12 and 13 may be a semi-circularportion so that when the sections of the body 11 are assembled a collar15 is provided. Adjacentto the collar 15 is a flange, as 16, and anenlarged angular portion providing a wrench seat 17 which may behexagonal, or square, or any other suitable shape when the sections areassembled so as to be adapted to receive a wrench whereby the body 11may be manually rotated when it is desired to remove it after beingapplied upon a bolt, or threaded rod, or the like. The ends or stems ofthe sections 12 and 13 of the body 11 which are opposite to the alsoexteriorly threaded, at 18, so that a continuous threaded portion forthe body will be-provided when said sections are as sembled upon a bolt.

Serving as a means to hold the sections 12 and 13 of the body 11 againstdisplacement when applied upon a bolt, I provide a clamp or sleeve 19.The sleeve 19 is interiorly threaded, at 20, and may be hexagonal, orsquare in exterior formation whereby a wrench seat 21 is provided sothat the sleeve may be screwed upon the sections 12 and 13 of the body11. In applying the lock-nut to a bolt, or the like the sections .12 and13 are disposedupon the threaded stem thereof so as to conform with eachother, and the sleeve 19 may then be screwed upon the threaded stems ofthe sections, or the sleeve 19 and said sections may be first assembled,and the parts then screwed upon the bolt. By the simultaneous, oralternate employment of wrenches upon the seats 17 of the body 11 andupon the seat 21 of the sleeve 19 the lock-nut may be rotated so as tobe suitably adjusted upon the bolt.

For the purpose of holding the lock-nut upon the bolt against movementby vibration, or shock, or strain in each of the stems ofthe sections 12and 13 are threaded coun tersunken openings 22 and 23, in order that aset-screw 24 may be guided in each open ing when the sections areapplied to a bolt so as to engage the thread of the bolt. When it isdesired to remove the loclonut from the bolt the set-screw 24 is removedfrom the openings in the stems. By the use of wrenches upon the seats 17and 21 the sleeve 19 will be readily disengaged from the stem of thebody, and the sections 12 and 13 may then be detached from the bolt.

In the foregoing description I have em- Patented Aug. 2'7, 1912.

collar 15, are

ing myself thereto, as I am aware that modi- 'fications may be madetherein without departing from the principle, or sacrificing any of theadvantages oi this invention,

therefore I reserve to myself the right to make such changes as fairlyfall Within the scope thereof.

Having; thus described: my invention 1 claim as new and desireto secureby Iuetters Patent 1., In; a; lock-nut, a: tubular body composed of" twosemi-circularsections; each having a stem. and an; angulan' enlargedportion ex teriorly. at one end: thereof whereby aiwrench seat is;provided; when: the sections are assembled and each of: the stems beingcorrespondingly threaded. int eri'orly' and exteriorlys, both of said;stems having an openin'g,v means adapted to hold the sections-0t thebody. togetherand: a. set-screw provided: in the opening of'eacli stemand: serving to lock the sections against displacement when applied upona threaded bolt or the like.

2. In a lock-nut, a tubular body composed .of two semi-circularsections, each having a stem and an angular enlarged portion exteriorlyat one end thereof wherebyawrench seat is provided when the sections areassembled and each of the stems being corre- "jspondingly threadedinteriorly and exteboth 01": said stemshaving-j aniopen riorly, mg, anexterior-1y threaded sleeve adapted tobe screwed upon: the stems whenassem bled; and aset-screw provided in the'opening of: eaelr stemandserv-ing to lock the sections against displacement when applied upona threaded boltz or the like:

This specification signed and witnessed this twenty-ninth day of AprilA. D. 1912.

JOHN B CUIJLEN.v

WVit-nesses Roma B: ABBOTT, G. HARRIGAN. I

(Topics-oi tmsmatentmay'B'e'obtained torfi'vecents each, byaddressing'flie 'Commissibner o fiPa'tents. Washington; D10.

